Stop for carriages of metal-working machines.



B. M. W. HANSGN.

STOP FOR GARRIAGES OP METAL WORKING MACHINES.

APPLICATION FILED NOV. Z3, 1905.

Patented Nov. 2, 1909.

GMW

UNITED STATES PATENT OFFICE.

BENGT M. W. HANSON, OEHARTFORD, CONNECTICUT, ASSIGNOR T0 PRA-TT & WHITNEY COMPANY, OF HARTFORD, CONNECTICUT, A CORPORATION OF NEW JERSEY.

Specication of Letters Patent.

Patented Nov. 2, 1909.

Application led November 23, 1905. Serial No. 288,650.

To all 'whom 'it may concern:

Be it known that I, BENGT M. W. HANsoN, a citizen of Sweden, (who have declared my intention of becoming a citizen of the United States,) residing at Hartford, in the county of Hartford and lState of Connecticut, have invented certain new and useful Improvements in Stops for Carriages of Metal-Working Machines, of which the following is a specification.

This invention relates to stops for the carriages of lathes, milling-machines and other metal-working apparatus, and it has for its obj ect the provision of improvements in such devices, whereby they are rendered more reliable in operation, and may be readily applied to, adjusted on, and withdrawn from the ways or shears of the bed.

Further objects of the invention are the provision of a stop of peculiar form, of improved means for clamping said stop in place, and of means for eifecting a line or micrometric adjustment of the stop-proper, as will be hereinafter explained.

In the accompanying drawings, Figure 1 is a side elevation of part of the machinebed and carriage, showing the improved stop in place on said bed. Fig. 2 is a transverse section on line 2-2 of Fig. 1; and Fig. 3 is a partial longitudinal section on line 3 3 of Fig. 2. A

Like numerals designate similar parts in the several views.

Referring to the drawings the numeral 5 designates a bed of a machine, provided with a way 6 upon which the carriage 7 travels, said carriage having an apron 8, and being actuated, in the exemplification given, by a lead-screw 9, although it may be operated by any desired means, so far as the present invention is concerned.

Designated by the numeral 10 is the improved stop. This stop consists of a body of oblong and substantially yoke form, said body being provided with a chamber 10 in its side to receive a iiange 6 of the way 6. At its lower wall the chamber is provided with a flat surface 102 on one branch of said yoke-like body to lit against the under side of said flange 6', while the upper wall of said chamber is inclined at 103 on the other branch of said yoke-like body for a purpose hereinafter stated.

In a tubular boss 11 of the stop-body is fitted a. bolt 12 having an angular head 12 for the reception of a wrench, and a threaded end 122. A rectangular nut or block 13 having a Hat end surface 13 andan inclined upper surface 132 is fitted in the chamber of the stop-body and serves when the bolt `is actuated to clam said stop-body rmly to the flange 6 of t e'bed. It will be evidentthat the body of the stop hasa relatively xed jaw and a movable jaw the latter consisting in the present case of a nut 0r lblock such as 13 provided'with a beveled surface to engage a corresponding surface on the relatively fixed body to cause the active or under surface 13 of said jaw or nut to a proach the coperating surface when said jaw 13 is ymoved in the proper direction which by the construction shown is inwardly with respect to said body. In its upper end the stop-body has a cylindrical extension 14 internally threaded at 14 to receive a stop member such asthe screw 15, the end 15 of said screw constituting the stop-proper. At right-angles to the threaded bore 14 the eX- tension 14 is provided with a passage 16 in which is inserted a 'screw 17, and a clampshoe 17 by means of which the stop-proper may be clamped firmly in position after it is adjusted, if desired. This passage may serve either as a lubricating-passage, or as the internally-threaded seat for the screw 17,which after the stop-proper has been adjusted may be run down to force the shoe heretofore described to clamp said stop-proper firmly in position.

At its end opposite the extremity 15 the screw is provided with a collar 152, and upon this collar is secured by means of a screw 18 or otherwise a sleeve 19 having a knurledsurface 19 and a graduated --surface 192. Laterally projecting from the cylindrical portion 14 of the stop is a perforated boss or shoulder 20, provided with an indicatingmark 20. By grasping the knurled-surface 19 of the sleeve 19 the screw 15 may be turned in its seat to avford the ne or micrometric adjustment, such adjustment being indicated by the scale 192 and the indicatingmark or pointer 20.

In the operation of the invention the leadscrew 9 is driven in any of the usual ways to actuate the carriage, and the limit of either stroke of said carriage is determined by the position either of the stop 10 along the my of .the zbed, or of :theaoraw tor roper 15 adjusted in themannerdescribed.. edvond `the collar 15" the screw 15 is pro; vi ed 4with .an extension 15', so that .either end of said screw'may be em loyed as a 'stop to limit the 'movement ,ofi .e kcarriage.; Inap lyin thestoptotheway of thebedV it 'is 'over .the ange thereof, as illustrated 1n 2, and the screw 12 is thenl turned in a.l irection to force the inclined," wall 13 ofthe nut or block 13 against the inclined flof the -wa'll ofthe ehamsvlichlboek vis 1 f own-in. erawings,t L isemployed itc, 5limit the return movemsetiit of fthe carriage, but when it'is desired -to -use said for the jforward `movement of sai carri itis removed from the wa and 4again amped thereto atapointfina vence Aof the carriage when the end 15 'of said @atop` will servi? )the purpose described. lIn this'lway a single 'stop 'may be employed f I [for -the movement of .the carriage;

V11i-n either-direetion,and :said stop may .be accuratelyad-justed in the manner -described to arrestlthelcarriage'at-any desired point off its fsifldke. A strong =and rigid construction `is thus provided for the purpose described, and the stop-proper carried by said construction is capable of micremetric -adjust- E ment as above stated.

Changes may `made 'in the -form and `various details of the invention without de- -Farture therefrom, Ithe invention not imited t0 the yprecisie construction illustrat and described.

esmas chines, com a yoke like body one bmh of 0h oolxitutas a fixed jaw and the other branch of which has a beveled surface, a movable jaw located between fthe said branches and having a beveled surface coperative with said other beveled surface,

means for operating said movable jaw to cause the same to move toward or from said :fixed ljaw', and a -stop member supported by said body. f i

2.l 'An articleiof manufacture vconsisting Vof a stop for 'carriages of metal working machinos, com rising a yoke-like body one 'branch lof \w 'ich constitutes-a iixed 4jaw and the other of which has -a beveled surface, ya movable jaw located between said lbranc'hes and having a beveled surface -co erative with said lother beveled surace, -a i 'lt Afor o ratingk the movable jaw .to thereby t rough said ibeve'led surfaces -cause -sa'id movable ljaw to move toward and .from lthe fixed yjaw, and -a screw extending ftranv .versl-y Jto said bolt, carried iby the bodgy xand constituting a -sto member. Y

y Intestimon wiereof I aix :my signature Tin resence two witnesses, this. lstday of ovenber 1905.

B. vMt. W. HANSON.

-Witnessesz F. E. ANDERSON, WM. Bnonemrr. 

